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91. 发明专利

JP2002104152A CONTROL DEVICE FOR VEHICLE BRAKE 失效
公开(公告)号：JP2002104152A
公开(公告)日：2002-04-10
申请号：JP2000296132
申请日：2000-09-28
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： YAMAMOTO TAKAYUKI , SAWADA NAOKI
IPC分类号： B60T8/17 , B60T7/04 , B60T8/1761 , B60T8/32 , B60T8/50 , B60T8/58 , B60T13/74 , F16D65/14 , F16D66/00 , B60T8/00
摘要： PROBLEM TO BE SOLVED: To provide a control device capable of performing an effective brake control when an actuator for an electric brake is actually mounted on a vehicle. SOLUTION: This control device comprises a braking member for generating a brake torque by being pressed to a braked member rotating integrally with a wheel, an electric motor 11 for being rotated in a predetermined direction by supplied current to press the braking member to the braked member, state quantity detecting means 43, 46a to 46d, and 41 for detecting a state quantity of the vehicle, and a current supplying means that supplies current for rotating the electric motor in the predetermined direction when requirement of increase of the brake torque is determined based on the detected state quantity of the vehicle, or breaks the current to the electric motor or supplies to the motor the current for rotating the electric motor oppositely to the predetermined direction to the motor when requirement of decrease of the brake torque is determined.

92. 发明专利

JP2002067906A BRAKE CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JP2002067906A
公开(公告)日：2002-03-08
申请号：JP2000259850
申请日：2000-08-29
申请人： TOYOTA MOTOR CORP
发明人： YAMAMOTO TAKAYUKI
IPC分类号： B60T8/17 , B60T8/32 , B60T13/66 , B60T13/74 , F16D51/48 , F16D65/14 , F16D66/00 , B60T8/00
摘要： PROBLEM TO BE SOLVED: To reduce noise generated by an actuator and the like while ensuring braking responsiveness at an initial braking. SOLUTION: This brake control device for vehicle comprises: a braking member arranged so as to have a clearance with respect to a braked member rotating integrally with a wheel; electric motors 11, 23 which generate force for pressing the braking member after the braking member is moved so as to abut against the braked member; and a control means for controlling the force generated by the electric motors based on an operation of a brake operation pedal 60 or the like. The control means detects a vehicle speed as an operating condition of the vehicle, and controls the force generated by the electric motors by switching contact between a SW2 and SW5 so as to change the speed of the braking member in response to the detected vehicle speed at the time of moving of the braking member to the braked member. Accordingly, at high speed, the speed of each of the electric motors is increased and the braking responsiveness is ensured. At low speed, the vehicle speed of each of the electric motors is reduce whereby the noise is reduced.

93. 发明专利

JP2001204154A ACTUATOR 失效
公开(公告)号：JP2001204154A
公开(公告)日：2001-07-27
申请号：JP2000176662
申请日：2000-06-13
申请人： ASMO CO LTD , TOYOTA MOTOR CORP
发明人： UENO NAOKI , YAMAMOTO TAKAYUKI
IPC分类号： F16D65/22 , H02K7/06 , H02K7/10
摘要： PROBLEM TO BE SOLVED: To provide an actuator which has a mechanism for preventing an output shaft from slippage caused by an external force inputted from a load side, can be composed of a small number of components and has high reliability. SOLUTION: A slip preventive mechanism 30 comprises a restriction gear 32 which is geared with a pinion 25 turned with a rotation of a drive motor 22 to be in an engaged state or in a disengaged state and arranged in a rotation impossible region, wherein it cannot be turned at least in one direction, if it is in the engaged state; and a changeover motor 31 which turns the restriction gear 32 and changes the state of the restriction gear 32 and the pinion 25 between the engaged state and the disengaged state.

94. 发明专利

JP2001138882A ELECTRIC CONTROL SYSTEM FOR VEHICLE 失效
公开(公告)号：JP2001138882A
公开(公告)日：2001-05-22
申请号：JP35026399
申请日：1999-12-09
申请人： TOYOTA MOTOR CORP , DENSO CORP , AISIN SEIKI
发明人： YAMAMOTO TAKAYUKI , NIWA SATORU , SAWADA NAOKI , AIZAWA HIROAKI , KOJIMA SEIICHI
IPC分类号： G05B15/02 , B60R16/02 , B60T7/04 , B60T8/00 , B60T8/17 , B60T8/1761 , B60T8/28 , B60T8/32 , B60T8/62 , B60T8/92 , B60T13/74 , B60T17/22 , B60W50/023
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive electric control system for a vehicle of high reliability. SOLUTION: Stroke sensors 62, 64 and treading strength sensors 66, 68 are connected to a central control unit 50, one of the sensors 62, 64 and one of the sensors 66, 68 are connected to motor control devices 52-58, batteries 20, 22 are connected to the central control unit 50 and the sensors 62-68, the battery 20 is connected to the motor control devices 52, 58, and the battery 22 is connected to the motor control devices 54, 56. The central control unit 50 computes a target pressurizing force to output to the motor control devices 52-58, and even if the central control unit 50 gets out of order, the motor control devices 52-58 can compute a target pressurizing force by themselves to control the motors 32-38. Even if one of the batteries 20, 22 gets out of order, the sensors 62-68 and the central control unit 50 keep operating and two motor control devices are operated to brake a vehicle.

95. 发明专利

JP2001130401A ELECTRIC BRAKE DEVICE 失效
公开(公告)号：JP2001130401A
公开(公告)日：2001-05-15
申请号：JP31861299
申请日：1999-11-09
申请人： ASMO CO LTD , TOYOTA MOTOR CORP
发明人： OTA TSUTOMU , TAKEDA MASAHIRO , YOSHINO YASUNARI , YAMAMOTO TAKAYUKI
IPC分类号： B60T13/74
摘要： PROBLEM TO BE SOLVED: To improve the braking feeling and reduce the cost. SOLUTION: In this electric brake device 10, a digital converter 14 converts the depression force of a brake pedal 12 into an electric signal, and a controller 2 increases the torque of a driving motor 16 in accordance with the increase of the depression force on the basis of the electric signal to increase the vehicle braking force in accordance with the increase of the depression force. Here, a voltage switching device 24 is operated to reduce the fluctuation of the torque to the fluctuation of the depression force in an area of low depression force, whereby the fluctuation of the vehicle braking force to the fluctuation of the depression force can be reduced in the area of low depression force. That is, in the area of low depression force, the delicate difference of the depression force brings the delicate difference in the vehicle braking force, so that the braking of the vehicle can be finely executed in ordinary braking, and the braking feeling can be improved. As this device dispenses with a digital converter of high accuracy used in a conventional device, the cost can be reduced.

96. 发明专利

JP2001114039A POWER SOURCE CONTROL DEVICE, POWER SOURCE DEVICE ABNORMALITY DETECTING DEVICE AND VEHICULAR BRAKE SYSTEM 失效
公开(公告)号：JP2001114039A
公开(公告)日：2001-04-24
申请号：JP29527499
申请日：1999-10-18
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： YAMAMOTO TAKAYUKI , NIWA SATORU , SAWADA NAOKI
IPC分类号： B60R16/033 , B60R16/02 , B60R16/03 , B60T8/00
摘要： PROBLEM TO BE SOLVED: To provide a power source control device capable of coping with abnormality of a current supply wire, a power source device abnormality detecting device for detecting abnormality of the current supply wire and a vehicular brake system capable of performing both. SOLUTION: An alternator 38, a main power source device 30 including a main battery 40 and an auxiliary battery 32 are connected to a control device 26 including a brake ECU of an electric brake system and an electric motor by a main current supply wire 34 and an auxiliary current supply wire 36. A part of respective voltages of the alternator 38 and the main power source device 30 and input voltage of the main power source device 30 to the control device 26 is inputted to a power source device ECU46 as a main power source monitoring signal. When there is input of the main power source monitoring signal, both the main power source device 30 and the main current supply wire 34 are normal, and when there is voltage input from the main power source device 30, there is no input of the main power source monitoring signal and a voltage unimpression signal is generated, the main current supply wire 34 is abnormal such as disconnection, and a relay of the auxiliary battery 32 is closed to be connected to the control device 26 to supply an electric current.

97. 发明专利

JP2001106045A PARKING BRAKE CONTROL METHOD AND ELECTRIC PARKING BRAKE DEVICE 失效
公开(公告)号：JP2001106045A
公开(公告)日：2001-04-17
申请号：JP28251899
申请日：1999-10-04
申请人： TOYOTA MOTOR CORP
发明人： SHONO SHOICHI , URABABA SHINGO , YAMAMOTO TAKAYUKI , AZUMA NOBUTOMO
IPC分类号： B60T7/12
摘要： PROBLEM TO BE SOLVED: To prevent sound from generating when a parking brake is automatically released. SOLUTION: In automatic operating and releasing control for operating a parking brake when specified operating conditions are established and for releasing the parking brake when specified releasing conditions are established, the motor speed of an electric motor at the time that the parking brake is released is set to a low mode lower than the speed at the time that the parking brake is operated, and releasing of the parking brake is performed (S100 to S104). The motor speed is reduced, and therefore, sound can be prevented from being generated when the parking brake is released.

98. 发明专利

JP2000095077A BRAKING DEVICE FOR VEHICLE 失效
公开(公告)号：JP2000095077A
公开(公告)日：2000-04-04
申请号：JP26526598
申请日：1998-09-18
申请人： TOYOTA MOTOR CORP
发明人： OOTOMO AKIHIRO , KONDO KENJI , YAMAMOTO TAKAYUKI
IPC分类号： B60T8/00 , B60L3/00 , B60L7/12 , B60T17/22 , F16D65/18 , F16D65/28 , F16D66/00 , F16D65/21 , F16D65/34
摘要： PROBLEM TO BE SOLVED: To grasp the storage state of a battery always accurately. SOLUTION: A microcomputer 70 outputs a control signal to a driving circuit 71 at specified timing to drive an electric motor 28 so as to be rotated normally, and examines the action of the electric motor 28 during its driving to inspect the storage state of a battery 60. The specified timing is set to the timing of a vehicle being decelerated regardless of braking operation performed by a driver such as when accelerator operation is released during the travel of a vehicle, when the travel road of the vehicle is changed over to a downward slope from an upward slope, when a down-shift is operated, and when vibration is inputted to the vehicle from the road surface. On the basis of the inspected result, the defectiveness of the storage state of the battery 60 is informed by a display 82, and the execution of a program is completed to inhibit electrical control of the electric motor 28.

99. 发明专利

JP2000001163A FLUIDLESS BRAKE OPERATING STROKE GENERATOR 失效
公开(公告)号：JP2000001163A
公开(公告)日：2000-01-07
申请号：JP3716399
申请日：1999-02-16
申请人： TOYOTA MOTOR CORP
发明人： YAMAMOTO TAKAYUKI
IPC分类号： B60T8/00 , B60T13/74
摘要： PROBLEM TO BE SOLVED: To realize a brake operating feel equivalent to the hydraulic brake unit using fluid with the fluidless brake unit without using fluid, in the fluidless brake operating stroke generator, which is used in a fluidless brake unit to control the vehicle corresponding to brake operation without fluid and generates an operating stroke according to the braking force in the brake operating member. SOLUTION: A mechanism is provided that gives the relationship between the control force and operating stroke of a brake pedal 10 to the hysteresis characteristics without use of fluid. This mechanism may contain a hysteresis elastic body 42 made up with a material, with its length elastically changeable according to the load received, and the relationship between load and length having hysteresis characteristics.

100. 发明专利

JPH106952A HYDRAULIC BRAKE SYSTEM 失效
公开(公告)号：JPH106952A
公开(公告)日：1998-01-13
申请号：JP15946896
申请日：1996-06-20
申请人： TOYOTA MOTOR CORP
发明人： YAMAMOTO TAKAYUKI
IPC分类号： B60T8/48
摘要： PROBLEM TO BE SOLVED: To provide a fluid pressure brake system capable of actuating a pump for drawing hydraulic fluid from a sub-reservoir different from a main reservoir for supplying hydraulic fluid to a master cylinder without reducing the quantity of hydraulic fluid in the sub-reservoir. SOLUTION: When a pump 42 is started immediately before the start of TRC or VSC control or during initial checking, by making pressure booster valves 60 and 78 and pressure reducing valves 68 and 80 to be in communicated states, the delivery side of the pump 42 and the hydraulic fluid chamber 102 of a sub-reservoir 40 are short-circuited. Further, a main liquid passage shutting- off valve 30 is made to be in a shut-off state, and thereby the flowing of hydraulic fluid discharged by the pump 42 to a main reservoir 38 after passing through a master cylinder 10 is prevented. Since the hydraulic fluid discharged by the pump 42 is passed through the pressure booster and reducing valves 60, 68 and, etc., and returned to the suction side of the pump 42, the reduction of the quantity of hydraulic fluid in the sub-reservoir 40 is suppressed.

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